Figure 103 Maximum Configuration Diagram: Eternus Af250 - Fujitsu ETERNUS AF250 Design Manual

3. Hardware Configurations
Configuration Schematics
MP: Mid Plane
Board that is located between the front of the enclosure and the rear of the enclosure (the controller
(CM) side)
PSU: Power Supply Unit

Figure 103 Maximum Configuration Diagram: ETERNUS AF250

CA
CM#0
Memory
CPU
BUD
IOC
SCU
EXP
PSU
IOM#0
EXP
PSU
PANEL: Operation Panel
CE: Controller Enclosure
CM: Controller Module
CA: Channel Adapter
Host Interface
Memory: System Memory
BUD: Bootup and Utility Device
Backup area in case of power outage
•
Storage area for firmware
•
SCU: System Capacitor Unit
Backup power source in case of power outage
IOC: I/O Controller
Controller to control I/O
EXP: SAS Expander
Expander chip for SAS connections
DE: Drive Enclosure
IOM: I/O Module
Unit that controls the I/O between controllers and drives
CE
CA CA CA
PANEL
CPU
IOC
EXP
MP
DE
PANEL
EXP
MP
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
CM#1
Memory
BUD
SCU
PSU
IOM#1
PSU
152
P3AG-1822-09ENZ0